import Vue from 'vue'
import VueRouter from 'vue-router'
// import Login from '../views/Login'
const Login = () => import(/* webpackChunkName:"login_home_welcome" */ '../views/Login')
// import Home from '../views/Home'
const Home = () => import(/* webpackChunkName:"login_home_welcome" */ '../views/Home')
// import Welcome from '../views/Welcome'
const Welcome = () => import(/* webpackChunkName:"login_home_welcome" */ '../views/Welcome')
// import Users from '../views/user/Users'
const Users = () => import(/* webpackChunkName:"user_right_role" */ '../views/user/Users')
// import Rights from '../views/power/Rights'
const Rights = () => import(/* webpackChunkName:"user_right_role" */ '../views/power/Rights')
// import Roles from '../views/power/Roles'
const Roles = () => import(/* webpackChunkName:"user_right_role" */ '../views/power/Roles')
// import Cate from '../views/goods/Cate'
const Cate = () => import(/* webpackChunkName:"goods" */ '../views/goods/Cate')
// import Params from '../views/goods/Params'
const Params = () => import(/* webpackChunkName:"goods" */ '../views/goods/Params')
// import List from '../views/goods/List'
const List = () => import(/* webpackChunkName:"goods" */ '../views/goods/List')
// import Add from '../views/goods/Add'
const Add = () => import(/* webpackChunkName:"goods" */ '../views/goods/Add')
// import Order from '../views/order/Order'
const Order = () => import(/* webpackChunkName:"order_report" */ '../views/order/Order')
// import Report from '../views/report/Report'
const Report = () => import(/* webpackChunkName:"order_report" */ '../views/report/Report')

Vue.use(VueRouter)

const routes = [
  {
    path: '/',
    redirect: '/login'
  },
  {
    path: '/login',
    component: Login
  }, {
    path: '/home',
    component: Home,
    redirect: '/welcome',
    children: [
      {
        path: '/welcome',
        component: Welcome
      }, {
        path: '/users',
        component: Users
      }, {
        path: '/rights',
        component: Rights
      }, {
        path: '/roles',
        component: Roles
      }, {
        path: '/categories',
        component: Cate
      }, {
        path: '/params',
        component: Params
      }, {
        path: '/goods',
        component: List
      }, {
        path: '/goods/add',
        component: Add
      }, {
        path: '/orders',
        component: Order
      }, {
        path: '/reports',
        component: Report
      }
    ]
  }
]

const router = new VueRouter({
  routes
})
// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to 将要访问的路径
  // from 代表从哪个路径跳转来的
  // next 是一个函数，表示放行 next() 放行, next('/login') 强制跳转
  if (to.path === '/login') {
    return next()
  } else {
    const tokenStr = window.sessionStorage.getItem('token')
    if (!tokenStr) {
      return next('/login')
    } else {
      next()
    }
  }
})

export default router
